NaturePlus: Message List - Identify this seaweed?http://www.nhm.ac.uk/natureplus/community/identification/seashore?view=discussions
Most recent forum messagesenMon, 13 Jan 2014 00:05:20 GMTJive SBS 4.5.6.0 (http://jivesoftware.com/products/clearspace/)2014-01-13T00:05:20ZenRe: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/40294?tstart=0#40294
<!-- [DocumentBodyStart:06061bc0-b9df-4ee3-8c5c-b0e6b745b081] --><div class="jive-rendered-content"><p><a class="jive-link-external-small" href="http://www.ispotnature.org/species-dictionaries/uksi/Lepas%20anatifera">http://www.ispotnature.org/species-dictionaries/uksi/Lepas%20anatifera</a></p></div><!-- [DocumentBodyEnd:06061bc0-b9df-4ee3-8c5c-b0e6b745b081] -->Mon, 13 Jan 2014 00:05:20 GMThttp://www.nhm.ac.uk/natureplus/message/40294?tstart=0#40294rhossilian2014-01-13T00:05:20Z1 year, 6 months ago0Re: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/34968?tstart=0#34968
<!-- [DocumentBodyStart:749f453b-c897-48eb-94b4-0e87de60e05c] --><div class="jive-rendered-content"><p>Common Goose Barnacle</p></div><!-- [DocumentBodyEnd:749f453b-c897-48eb-94b4-0e87de60e05c] -->Mon, 23 Sep 2013 11:05:32 GMThttp://www.nhm.ac.uk/natureplus/message/34968?tstart=0#34968rhossilian2013-09-23T11:05:32Z1 year, 10 months ago0Re: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/17191?tstart=0#17191
<!-- [DocumentBodyStart:1fbeebbc-590c-4689-a9b9-943b5a12ebd9] --><div class="jive-rendered-content"><p>English is not my first language and I thought that I perhaps had expressed some uncertainty about my identification.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>Martin &amp; Davis in An Updated Classification of the Recent Crustacea (2001 - can be found at <a class="jive-link-external-small" href="http://atiniui.nhm.org/pdfs/3839/3839.pdf">http://atiniui.nhm.org/pdfs/3839/3839.pdf</a>) uses:</p><blockquote class="jive-quote"><p>Subphylum Crustacea Br&#252;nnich, 1772</p><p>Class Maxillopoda Dahl, 1956</p><p>Subclass Thecostraca Gruvel, 1905</p><p>Infraclass Cirripedia Burmeister, 1834</p><p>Superorder Thoracica Darwin, 1854<br/><strong>Order Pedunculata Lamarck, 1818</strong></p><p>Suborder Lepadomorpha Pilsbry, 1916<br/>Family Lepadidae Darwin, 1852</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p></blockquote><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>On page 23 Martin &amp; Davis says:</p><blockquote class="jive-quote">SUPERORDER THORACICA<br/>Although few new extant families have been suggested since 1982, there have been significant rearrangements of the cirripedes (or attempts to rearrange them) by workers using morphological and molecular data. Perhaps the most comprehensive is the cladistic study by Glenner et al. (1995), who concluded that many currently recognized groups appear to be paraphyletic, including the groups that appear in our classification under the headings &#8216;&#8216;Lepadomorpha&rsquo;&rsquo; and &#8216;&#8216;Pedunculata.&rsquo;&rsquo; However, Glenner et al. (1995) also noted that &#8216;&#8216;we have far to go before a new taxonomy can emerge&rsquo;&rsquo; and suggested the continued use of such commonly used terms as &#8216;&#8216;lepadomorphs&rsquo;&rsquo; or &#8216;&#8216;pedunculates&rsquo;&rsquo; as long as workers understand that these are groupings more of convenience than of common descent. We are not in agreement with this philosophy and would prefer to recognize taxa that reflect common descent, but in this group, it is apparent that we are not yet at the point where we know which clades are valid.<br/>For the most part, we have followed the classification of the Thoracica given by Newman (1996). Thus, we are recognizing the order Pedunculata (an old name that was previously thought to lack validity but that Newman (1996) feels is a natural assemblage and thus has resurrected) as containing four suborders.[...]</blockquote><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>My Enckell (<em>Kr&auml;ftdjur</em>, 1980, 685 pages, ISBN 91-85330-27-2), which I use for identifying crustaceans, uses only subclass Cirripedia, order Thoracica and family Lepadidae and says "The often used partition in Lepadomorpha, Balanomorpha and Verrucomorpha has not been followed here."</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>But I agree with Martin &amp; Davis and find Pedunculata useful for collecting all goose barnacles (which we call "l&#229;nghalsar" - longnecks - in Swedish) in one taxon and separating them from the sessile barnacles (which we call "havstulpaner" - sea tulips), especially if Scalpellidae is included in Scalpellomorpha and not in Lepadomorpha.</p><p>Tolweb.org uses Pedunculata (<a class="jive-link-external-small" href="http://tolweb.org/Cirripedia/8127">http://tolweb.org/Cirripedia/8127</a>).</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>And note that I use "perhaps", not "maybe". <span class="jive_macro jive_emote" src="/natureplus/images/emoticons/wink.gif"></span></p></div><!-- [DocumentBodyEnd:1fbeebbc-590c-4689-a9b9-943b5a12ebd9] -->Wed, 07 Mar 2012 15:50:42 GMThttp://www.nhm.ac.uk/natureplus/message/17191?tstart=0#17191Episcophagus2012-03-07T15:50:42Z3 years, 4 months ago10Re: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/17185?tstart=0#17185
<!-- [DocumentBodyStart:6f277b84-d12a-44ca-97a7-8d059e9ce718] --><div class="jive-rendered-content"><span style="font-size: 10pt;"><p>My Apologies, it was meant as an abbreviation for 'I would guess', &amp; I don't know you but assume you're actually pretty sure as you gave the same (correct) answer (again a perfect photofit) 3 months ago, "Anyone know what these are".It surprised me that with good photofits &amp; (as I believe) the right answers these stayed "unsolved" for months. But I hope my answer (given the authority of Glaucus &amp; species.org as I'm no expert) holds.If not please disabuse me.</p></span></div><!-- [DocumentBodyEnd:6f277b84-d12a-44ca-97a7-8d059e9ce718] -->Wed, 07 Mar 2012 13:09:42 GMThttp://www.nhm.ac.uk/natureplus/message/17185?tstart=0#17185rhossilian2012-03-07T13:09:42Z3 years, 4 months ago20Re: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/17178?tstart=0#17178
<!-- [DocumentBodyStart:4d80ea83-1d6c-4b58-8c8c-fb37aba6c60f] --><div class="jive-rendered-content"><span>The maybe?</span></div><!-- [DocumentBodyEnd:4d80ea83-1d6c-4b58-8c8c-fb37aba6c60f] -->Wed, 07 Mar 2012 10:12:30 GMThttp://www.nhm.ac.uk/natureplus/message/17178?tstart=0#17178Episcophagus2012-03-07T10:12:30Z3 years, 4 months ago30Re: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/17092?tstart=0#17092
<!-- [DocumentBodyStart:ed71b2b3-be40-4be2-aeef-26d6d53538e6] --><div class="jive-rendered-content"><span style="font-size: 10pt;"><p>Episcophagus is spot on except for the <span style="text-decoration: underline;">maybe</span>.1st it'll be obvious to a marine biologist that these are "goose barnacles" and which one can be found using the net's <strong>glaucus</strong>, (for the list) and <strong>species-identification </strong>(for illustration &amp; description).</p><p><strong><a class="jive-link-external-small" href="http://www.glaucus.org.uk/Barnacles.html">http://www.glaucus.org.uk/Barnacles.html</a></strong> gives at the <strong>TOP</strong> the overall classification of the part of <span style="text-decoration: underline;">Cirripedia</span> containing barnacles, the Order <span style="text-decoration: underline;">Thoracica</span>, of which the goose barnacles are in Suborder <span style="text-decoration: underline;">Lepadomorpha</span> . at the <strong>BOTTOM</strong> is the list of UK species,with the 13 'goose barnacles' at the top.</p><p>(NB the barnacle classification seems to be 'in flux' so order Thoracica has become a superorder &amp; Pedunculata's disappeared etc.)</p><p>Of the 13, 5 arent in <strong>species-identification</strong>, <span style="text-decoration: underline;">Alepas parasitica</span> is parasitic on medusae,<span style="text-decoration: underline;">Anelasma squalicola</span> deep[ly attaches to spine of the deep-water <span style="text-decoration: underline;">velvet-bellied shark</span>, <span style="text-decoration: underline;">Scalpellum kempi</span> I found no information, <span style="text-decoration: underline;">mitella pollicipes</span> is in google images as is scalpellum velutinum, but as "<span style="text-decoration: underline;">arcoscalpellum michelottianum</span>".</p><p>For the rest use <strong><a class="jive-link-external-small" href="http://species-identification.org">http://species-identification.org</a></strong> , &amp; in the search box enter "conchoderma aurita" &amp; clicking 'next species' cycles through the remaining 8 + 1 extra, <span style="text-decoration: underline;">Scalpellum stroemi</span>. These illustrations show the 5 Lepas sp's the only contenders. They all show 2 main parts, the stalk or "peduncle" &amp; the other bit "capitulum".For all but 1 of the 5 the peduncle is given (in either <strong>description</strong> or <strong>size</strong>) as less than or about equal to the peduncle.But for <span style="text-decoration: underline;"><strong>Lepas anatifera</strong></span> the peduncle can be "sometimes several times longer than the capitulum" QED. (If the peduncle was only as long as the capitulum it could possibly be Lepas Hilli).</p></span></div><!-- [DocumentBodyEnd:ed71b2b3-be40-4be2-aeef-26d6d53538e6] -->Sat, 03 Mar 2012 00:28:02 GMThttp://www.nhm.ac.uk/natureplus/message/17092?tstart=0#17092rhossilian2012-03-03T00:28:02Z3 years, 5 months ago40Re: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/16235?tstart=0#16235
<!-- [DocumentBodyStart:3847c38c-e7bf-4d2e-ad0c-42e554d42128] --><div class="jive-rendered-content"><span>Great - many thanks for that brisk reply. Now I can tell my grandchildren who were as fascinated as I was when we found it. Stan. </span></div><!-- [DocumentBodyEnd:3847c38c-e7bf-4d2e-ad0c-42e554d42128] -->Sun, 01 Jan 2012 12:20:58 GMThttp://www.nhm.ac.uk/natureplus/message/16235?tstart=0#16235Stan2012-01-01T12:20:58Z3 years, 7 months ago0Re: Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/16234?tstart=0#16234
<!-- [DocumentBodyStart:34768f4b-ad02-45f6-9709-98203fc93a8d] --><div class="jive-rendered-content"><p>It is not a "weed" - it is animals!</p><div class="jive-rendered-content"><span>They are goose barnacles (Crustacea, Cirripedia, Pedunculata) and, when it comes to species, I would say </span><em>Lepas anatifera</em><span>. Compare </span><a class="jive-link-external-small" href="http://www.flickr.com/photos/gwylan/2169675301/">http://www.flickr.com/photos/gwylan/2169675301/</a><span>.</span></div></div><!-- [DocumentBodyEnd:34768f4b-ad02-45f6-9709-98203fc93a8d] -->Sun, 01 Jan 2012 11:59:00 GMThttp://www.nhm.ac.uk/natureplus/message/16234?tstart=0#16234Episcophagus2012-01-01T11:59:00Z3 years, 7 months ago10Identify this seaweed?http://www.nhm.ac.uk/natureplus/message/16232?tstart=0#16232
<!-- [DocumentBodyStart:117db095-b839-4b7d-862b-b89d5c164be9] --><div class="jive-rendered-content"><span>Can anyone identify this seaweed? A mass growing on a log found at high water mark on a North Devon beach. Each tubular element is about 10 cm long and 8 mm diameter. Attached at the end of each tube a bright blue/white shell with filaments protruding. I couldn't decide in the time available if it was a single plants or a seaweed with multiple attached molluscs. </span></div><!-- [DocumentBodyEnd:117db095-b839-4b7d-862b-b89d5c164be9] -->Sun, 01 Jan 2012 09:17:40 GMThttp://www.nhm.ac.uk/natureplus/message/16232?tstart=0#16232Stan2012-01-01T09:17:40Z3 years, 7 months ago80